Perhaps one of the most sobering problems with .300 Blackout is the ability to chamber in a .223 or 5.56mm barrel. This is why the idea that you should never use a barrel longer than 8 or 9 inches for the 300 Blackout is bunk. The Blackout with a 220- or 225-grain bullet can be driven at least 1,000 fps from a 16" barrel to give about 488 foot pounds of energy at the muzzle. As an added bonus, its all-copper construction means you dont have to worry about picking slivers of lead out of your steaks. Now, obviously 300 Blackout isnt ideal for long-range shooting or killing animals like elk, moose, and nilgai, but you probably dont need me to tell you that youre better off using a more powerful cartridge than 300 Blackout for killing these animals anyway. Although theyre quieter, subs are also have significantly worse external and terminal ballistics and often dont have enough energy to make the gun operate properly. Testing was conducted at an elevation of 2,200 feet above sea level. by 20X11 Sun Dec 29, 2013 10:50 am, Post The first thing that strikes you about this cartridge is the shiny, silver tip of the bullet. 4500$, Caliber: A cartridge, also called a round, refers to a design for a how a case (the brass shell that holds the gun powder) and a bullet all fit and function together. The recovered weight (RW) is the weight in grains of the largest portion of the bullet. . Over the past few years, Aero Precision has made a name for itself, especially among AR-15 builders. It was the fastest handload I tested. (L to R) 5.56 NATO, .300 BLK, .30 Carbine. The copper base of the bullet is weakened in key spots so that when its forced to expand by the aluminum nose of the bullet, it flies apart into several sharp copper shards. By the time both bullets have traveled about 500 yards, theyre moving at almost the same speed. The point is that if you are going to choose a rifle sized weapon, you ought to use ammunition that can do rifle sized work. I will try some other loads and see if I can keep sub and still cycle. If you were to keep pushing on the car, thoughnot necessarily pushing any harder but pushing on the car for longerthen it would gather even more speed and move even further. The 300 Blackout was designed to be used in AR-15s, with one simple change: As long as you change the barrel of your AR-15, which can be done by popping out two pins and putting on a new upper receiver, you can shoot 300 Blackout ammo out of your AR-15. Energy is measured in foot-pounds of force (ftlbf), or Joules (J) if you prefer the metric system. Copyright 2023 | Privacy and Disclosure | Curation Policy | DMCA Policy. As deer ammo goes, thats slow, but only 200 fps slower than the old 30-30. The unknown issue many .300 BLK shooters are combating without even knowing it is their 5.56 NATO/.223 magazines will not reliable feed all grain weights and bullet profiles of the .300 BLK. Specifications: Length: 3.8" Width: 2.1" Height: 2.5" Weight: 9.0 oz Water Resistant: Submersible to 10 ft. Mount: 1" Weaver or MIL-STD-1913 rail Power Source: One 123 lithium battery Instead of being made of solid lead and copper, like most bullets, frangible bullets are made of a mixture of compressed metal powders. The 300 Blackout shooter is getting 30-30 performance with about one-third the powder and slightly less recoil. .300 Blackout Review (BLK) 2022 - Why This Ammo Is GREAT - Gun Advice AR. Momentum! For example, a 55-grain 5.56 bullet bullet traveling just under the speed of sound1,050 fpsonly has 135 ft.lbf. I was even able to switch back to heavy buffer and m16 spring. An adjustment in overall length might correct this problem. Summary: Unlike 5.56 or .223 Remington, 300 Blackout ammo is highly effective and legal for deer hunting in all almost every state. The two primary kinds of ballistics you need to worry about are external ballistics and terminal ballistics: So, with this model in mind, lets look at the 300 Blackouts external and terminal ballistics. Beyond the upgrade in bullet diameter, the 300 BLK offers the versatility of heavy 220 grain plus subsonic projectiles as well as lighter supersonic offerings. You can easily adjust for the 8 inches of drop at 200 yards by aiming slightly above the target. PROS: Straightforward design; 7" barrel twist; Great compact rifle handling character. The barrel is chambered in 300 AAC Blackout with a 1 in 8" twist. One Guy's Issues with a Springfield Saint in 300 BLK -300BlkTalk The 300 in 300 Blackout stands for .30-caliber, which is a measure of the diameter of the barrel a bullet is designed to be fired through. You can see the similarity of the case sizes in a picture like this: The cartridge on the left is the 5.56, the one in the middle is the 300 Blackout, and the one on the right is the 7.6239. With some loadsparticularly those using the 125-grain Nosler. Than 5.56 Ammo, 300 Blackout Ammo Can Be Used in AR-15s with Minimal Modification. PRESCRIPTION 1Bullet: 110-grain Sierra HPPowder/Charge: Hodgdon Lil'Gun, 20.0 grainsPrimer: Federal Small RifleCartridge Overall Length: 1.89 inchesMuzzle Velocity: 2,402 fps. I would note that of those three things the Springfield Saint 300blk has only the first. If youre going to use 300 Blackout ammo for hunting, though, its essential that you use hollow points, which are significantly more effective at killing big game than full metal jacketed bullets. Just for kicks, I also assembled subsonic loads with two heavyweight bullets. The best way I've found to solve this problem is to size brass without the expander ball in the die.
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